Technical tip: The task limit for asynchronous log searches in FortiAnalyzer

[bksol92]

Description	This article discusses the task limit for asynchronous log searches in FortiAnalyzer.
Scope	FortiAnalyzer v7.2.4 and above
Solution	In one user session, a new task is generated when a log search is performed in FortiAnalyzer GUI, or via API. There is a limit to the amount of tasks generated for log searches performed: Tiara-kvm12 # dia test app fazsvcd 4 Slot total=128 inuse=0 Starting from v7.2.4 and above, the amount of tasks generated from asynchronous log searches is 128: Tiara-kvm12 # dia test app fazsvcd 4 00: reqid=2021720192 lass-access=4s(ago) clt-lass-access=4s(ago) fetch=0 cancelled=0 complete=55s(ago) errcode=0 ready=1 thr-mode=standby 01: reqid=1836581121 lass-access=4s(ago) clt-lass-access=4s(ago) fetch=0 cancelled=0 complete=55s(ago) errcode=0 ready=1 thr-mode=standby 02: reqid=1820328322 lass-access=4s(ago) clt-lass-access=4s(ago) fetch=0 cancelled=0 complete=54s(ago) errcode=0 ready=1 thr-mode=standby --- 125: reqid=496123773 lass-access=13s(ago) clt-lass-access=19807d4h54m39s(ago) fetch=0 cancelled=0 complete=13s(ago) errcode=0 ready=1 thr-mode=standby 126: reqid=791101438 lass-access=13s(ago) clt-lass-access=19807d4h54m39s(ago) fetch=0 cancelled=0 complete=13s(ago) errcode=0 ready=1 thr-mode=standby 127: reqid=430522495 lass-access=13s(ago) clt-lass-access=19807d4h54m39s(ago) fetch=0 cancelled=0 complete=13s(ago) errcode=0 ready=1 thr-mode=standby Slot total=128 inuse=128 A Python script is attached here to test this limit (logsrch.py); the following screenshot shows the number of active tasks in one API session: Output from an API script when the task limit is reached Once the limit is reached, the FortiAnalyzer will return the following error: This will also affect log searches done on the GUI: dia de app fazsvcd 8 dia de en _get_logs:1827: _get_logs debug info: retc=-9 adom_prefix: FSFADOM3-FAZ, dev_type: 7 (FAZ), logtype: 5 (e), subtype: -1, count_limit=-1, logs_per_page=50, start_line=0, log_num=50 kw: itime>=1711339254 itime<=1711342853 handle_client_request:220: jsonapi response={ "retcode": -9, "error": "No available slot for searching", "jsonrpc": "1.0", "id": 1013 }. Note: The limit is only 64 in v7.2.3 and below.